<!DOCTYPE html>
<html>
<head>
  <title>Child frame</title>
</head>
<body>
  <h1>This is a scrolling frame test</h1>
  <div>
    <table>
      <tr height="50px">
        <td>First row</td>
      </tr>
      <tr height="50px">
        <td>Second row</td>
      </tr>
      <tr height="50px">
        <td>Third row</td>
      </tr>
      <tr height="50px">
        <td>Fourth row</td>
      </tr>
    </table>
  </div>
  <input type='checkbox' name='scroll_checkbox' />
</body>
</html>